This article studies strategic aspects connected to third party access to storage facilities (TPAS) in the gas sector. We show that in some market settings, TPAS can be used strategically by vertically integrated gas producers who behave as buyers in the intermediate market. The aim of these...

[fre] Cet article dresse un panorama des problèmes liés à la réglementation des activités en réseaux récemment ouvertes à la concurrence. En premier lieu, la recherche d'une gestion efficace des activités a conduit les autorités de réglementation à abandonner les mécanismes de...

[eng] The purpose of this paper is first an overview of the problems which emerge with the liberalization of telecommunications. Then, we focuse on the liberalization of infrastructures, and more precisely on the reciprocal access pricing problem. In a simple model, we show that cooperation...

In this paper, we analyze the strategic function of gas storage focusing on how gas storage decisions impact competition between gas companies on both spot and downstream markets. Using a two-tier oligopolistic structure, we first show that gas storage is actually used strategically even in a...

We study horizontal mergers on two-sided markets between horizontally differentiated platforms. We provide a theoretical analysis of the merger's price effect based on the amount of cost savings it generates, the behavior of outsider platforms, and the size of cross-group network effects. We...

The aim of this paper is to explore the effectiveness of asymmetric regulation, which allows a new mobile network operator to set higher termination rates than the incumbent operator. We assume that there are two market segments: one in which operators compete on equal terms, with a new...

This paper studies the interplay between network investment and content quality on the Internet, and investigates the implications to the net neutrality regime. We assume a model in which a network operator provides access to consumers and content providers. The network operator offers two...

This paper studies a model of the Internet broadband market as a platform in order to show how di¤erent pricing schemes from the so-called "net neutrality " can increase economic e¢ ciency by allowing more investment of access providers and enhancing consumers surplus and social welfare. We...

This paper deals with competition in communications markets between an incumbent and an entrant. We analyze the effect of bundling strategy by a firm who enters an incumbent market. This market dimension has profound implications on the sustainability of collusion in an infinitely repeated game...